.wu-slider {
		 position:fixed;
		 z-index:1000;
		}

		.wu-left {
		 left:0;
		}
		
		.wu-right {
		 right:0;
		}
		
		.wu-icon {
		 cursor:pointer;
		 background-repeat:no-repeat;
		 display:block;
		}

		.wu-64 {
		 width:64px;
		 height:64px;	
		}
		
		.wu-48 {
		 width:48px;
		 height:48px;	
		}
		
		.wu-32 {
		 width:32px;
		 height:32px;	
		}